Trees deciduous; buds with scales. Leaves long petiolate; leaf blade elliptic or oblong, leathery or papery, basal veins 3, margin denticulate. Inflorescences axillary, cymose. Flowers bisexual. Pedicel articulate. Sepals 5, fleshy, valvate. Petals absent. Androgynophore absent. Stamens and staminodes many, in 2 or 3 series, outer series of 10 staminodes, in pairs, inner stamens 20, in 5 fascicles; filaments slightly connate; anthers 2-loculed. Ovary superior, 5-loculed, sessile; ovules 6 per locule; styles 5. Fruit a 5-winged capsule, ellipsoid, loculicidally dehiscent, wings veined, membranous. Seeds 1, 2, or 4 per locule, oblong.